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Vihar C. Surti, Winston-Salem US

Vihar C. Surti, Winston-Salem, NC US

Patent application numberDescriptionPublished
20080208224INTESTINAL BYPASS USING MAGNETS - Medical devices and methods are provided for forming an intestinal bypass anastomosis, such as for treatment of obesity. The medical devices and methods are minimally invasive and reduce complications. Two magnet assemblies are deployed in a spaced apart relationship, and are transluminally brought together to approximate the tissue and form an anastomosis therebetween.08-28-2008
20080221595APPARATUS AND METHODS FOR DELAYING GASTRIC EMPTYING TO TREAT OBESITY - Medical devices and methods for the treatment of obesity. The medical devices generally include an attachment portion for attaching the medical devices on or adjacent the pylorus and a limitation portion for limiting the passage of stomach contents through the pylorus to delay emptying the stomach. The limitation portion may be responsive to pressure from stomach contents to substantially close or to open the passageway.09-11-2008
20080255412ENDOSCOPIC BARREL WITH CONNECTOR - An endoscopic assembly for an endoscope is disclosed. The assembly comprises a ligator barrel having proximal and distal portions. The proximal portion has a seat and a receiving wall extending to a proximal end. The receiving wall has a first threaded portion formed thereon. The assembly further comprises a connector for connecting the ligator barrel about the endoscope. The connector has a scope portion and a tip portion. The scope portion has a receiving end through which the endoscope is disposed to engage the seat for connecting the ligator barrel about the endoscope. The tip portion has a second threaded portion formed thereon and are configured to cooperate with the first threaded portion to receive the receiving wall and attach the connector with the ligator barrel. The first and second threaded portions are configured to cooperate with each other to tighten the connection of the ligator barrel about the endoscope as the threads increase surface area contact therebetween.10-16-2008
20080294001MEDICAL DEVICES, SYSTEMS AND METHODS FOR CLOSING PERFORATIONS - Medical devices, systems and methods for placing tissue fixation devices are provided. The medical device includes a plurality of elongate delivery devices, a plurality of elongate tubes, and a distal tip. Each delivery device defines a delivery lumen sized to receive a tissue fixation device. Each elongate tube defines a tube lumen sized to receive one of the delivery devices. Each tube lumen has a distal port. The distal tip is connected to the plurality of elongate tubes and defines a guide surface positioned distally of the distal ports. The guide surface is structured to redirect the plurality of delivery devices radially outwardly as the plurality of delivery devices are distally translated through the tube lumens and the distal ports of the plurality of elongate tubes. A medical system is formed by an endoscope that is selectively attachable to the medical device.11-27-2008
20080300629SUTURE LOCK - Suture Locks, as well as related systems and methods, are provided for fixing strands of one or more sutures relative to tissue. The suture locks, systems and methods are simple and reliable in use, facilitate complete perforation closure and adjustment of the suture strands, and are adaptable to a variety of suture fixation and perforation closure situations. The suture lock includes a locking pin and a retaining sleeve. The locking pin has a main body and a grip. The retaining sleeve has a tubular body with an internal wall defining an internal passageway sized to receive the locking pin therein. The suture lock is operable between a locked configuration and unlocked configuration. In the locked configuration, the suture strands are compressed between the grip and the internal wall of the tubular body.12-04-2008
20090024149RIVET INTRODUCTION SYSTEM - A rivet, rivet introduction device, and method therefor. The rivet is configured for deployment from a rivet introduction device to provide for connection of tissue. The rivet preferably includes two expansion zones configured to secure tissue therebetween, with the expansion zones being either self-expanding or expandable by use of a mandrel. The rivet introduction device preferably is configured to provide for introduction of a rivet with access only to one side of the tissue to be connected.01-22-2009
20090048486Distal Tip for an Endoscope - A system configured for endoscopic treatment of tissue is provided. The system includes an elongate shaft having a proximal portion, a distal portion and a working channel extending at least partially through the shaft. The elongate shaft further includes a longitudinally extending central axis. A distal end of the distal portion of the elongate shaft includes a distal tip having a curvilinear portion. The curvilinear portion is configured to dilate a stricture in a gastrointestinal tract for passing a portion of the system through the stricture to the tissue. The distal tip includes a working channel port connected to the working channel.02-19-2009
20090048613VISCERAL STAPLES FOR PURSE-STRING CLOSURE OF PERFORATIONS - Medical devices and related methods for closing a perforation in a bodily wall The medical device generally includes a suture having opposing first and second ends and a set of visceral staples. Each visceral staple includes a base and two tines connected to the base, the tines spaced apart two define a slot therebetween. The slot slidably receives the suture therein. Each visceral staple is attached to the bodily wall adjacent the periphery of the perforation. The ends of the suture are tensioned to reduce the distance between the visceral staples and compress the bodily wall around the perforation. The ends of the suture are secured to maintain the compression of the bodily wall and close the perforation.02-19-2009
20090082786MEDICAL DEVICES, SYSTEMS, AND METHODS FOR USING TISSUE ANCHORS - Medical devices, systems and related methods for delivering a tissue anchor. The medical devices generally comprise a needle and a sheath that assist in retaining the tissue anchor at the distal end of the need during manipulation of the medical device. The medical systems include one or more tissue anchors in conjunction with one of the medical devices.03-26-2009
20090093675SYSTEMS, DEVICES AND METHODS HAVING AN OVERTUBE FOR ACCESSING A BODILY OPENING - Medical systems, devices and methods are provided for accessing a bodily opening that, among other things, are safe, reliable and repeatable. A medical system for accessing a bodily opening generally includes a medical instrument and an overtube. The overtube defines an overtube lumen that is sized to receive the medical instrument. The overtube includes a distal end having a tapered portion and a plurality of longitudinally extending slits defining a plurality of flaps. The tapered portion of the overtube is sized relative to the medical instrument such that translation of the medical instrument through the distal end of the overtube forces the plurality of flaps to move radially outwardly.04-09-2009
20090157099DEVICE AND METHOD FOR PLACEMENT OF TISSUE ANCHORS - Medical devices and methods for deploying tissue anchors for simple and reliable closure of openings in tissue are disclosed. The medical device generally includes an access sheath and a flexible puncturing device. The flexible puncturing device is sized to be slidably received by the access sheath. The flexible puncturing device has a lumen sized to receive the tissue fastener. The flexible puncturing device is operable between a first linear configuration and a second non-linear configuration. A distal end of the flexible puncturing device is laterally spaced from the access sheath in the second non-linear configuration, and preferably retroflexes to provide placement of the tissue anchors on a proximal side of the tissue.06-18-2009
20090171382DELIVERY SYSTEM AND METHOD OF DELIVERY FOR TREATING OBESITY - A delivery system and method of use thereof for introducing a bundled intragastric bag into a gastric lumen are described. The delivery system includes a pushing mechanism movable between an unexpanded and expanded configuration. The pushing mechanism in its expanded configuration pushes each of the bundles of the bag into the gastric lumen. A suture strand is periodically pulled during the procedure to help create doughnut-shaped bundles. Another suture strand extends between a proximal button and distal button of the deployed assembly to maintain the doughnut-shaped bundle structure.07-02-2009
20090177031MEDICAL SYSTEMS, DEVICES AND METHODS FOR ENDOSCOPICALLY SUTURING PERFORATIONS - Medical systems, devices and methods are disclosed for suturing a perforation in tissue, that may be employed endoscopically and/or laparoscopically, and that offer simple, reliable and controllable placement of suture around a perforation for complete closure thereof. One embodiment of the medical system generally includes an endoscope, an endcap, a needle, a suture, and first and second grip systems configured for relative translation to selectively pass the needle between the first and second grip systems.07-09-2009
20090216319MEDICAL IMPLANT HAVING IMPROVED DRUG ELUTING FEATURES - An implantable drainage device for treatment of a stricture of a body vessel is disclosed. The device comprises a drainage tube including an inlet and extending to an outlet to define a drainage lumen formed through the inlet and the outlet. The drainage tube includes a swell layer and a cast layer formed about the swell layer. The swell layer has a first agent dispersed thereabout for regulated drug elution through the cast layer. The cast layer has a second agent disposed thereabout for drug elution therefrom.08-27-2009
20090270912TACKING DEVICE - The present embodiments provide apparatus and methods suitable for coupling a graft member to tissue, closing a bodily opening, and the like. At least one proximal deployable member and at least one distal deployable member are provided, each having a contracted state suitable for delivery and further comprising an expanded state. In the expanded state, the proximal and distal deployable members are configured to secure the graft member to the tissue. Optionally, a loop member may be provided for receiving a suture for further securing the graft member to the tissue.10-29-2009
20090288368MEDICAL DEVICE PACKAGING ASSEMBLY AND METHOD FOR MEDICAL DEVICE ORIENTATION - Methods of packaging a medical device to orient at least a portion of the medical device and a medical device packaging assembly are provided. A method includes providing an elongate holder having a lumen extending through at least a portion of the holder and providing the medical device including an elongate shaft where the shaft includes a first cross-sectional area having a rotational orientation and a second cross-sectional area having a second rotational orientation. The method further includes aligning the first and second areas so that the first and second rotational orientations are aligned along a longitudinal region of the shaft and inserting at least a portion of the medical device into the lumen of the holder Radial rotation of the first area with respect to the second area is substantially prevented.11-26-2009
20090312788SYSTEMS, DEVICES AND METHODS FOR ACCESSING A BODILY OPENING - Medical systems, devices and methods are provided for accessing a bodily opening that, among other things, are safe and reliable, and facilitate manipulation of a medical instrument. The medical access device generally includes an elongated flexible sheath and an expandable frame connected to the distal end of the flexible sheath. The sheath and expandable frame are operable between expanded and collapsed configurations to provide a pathway from a natural orifice to the bodily opening. Medical systems and methods are also provided for delivering the medical device.12-17-2009
20100049208APPARATUS AND METHODS FOR REMOVING LYMPH NODES OR ANCHORING INTO TISSUE DURING A TRANSLUMENAL PROCEDURE - The present embodiments provide apparatus and methods suitable for removing lymph nodes or providing a tissue anchor during a translumenal procedure. In one embodiment, an apparatus suitable for facilitating removal of a lymph node comprises an expandable device including at least one deployable member having contracted and expanded states. The deployable member may be delivered in the contacted state to a location distal to the lymph node using an insertion tool adapted to be disposed beyond the lymph node. In the expanded state, the deployable member comprises a configuration sized to at least partially circumferentially surround and engage the lymph node. In an alternative embodiment, the deployable member may anchor into an outer portion of a visceral wall to promote stabilization of a system during a medical procedure02-25-2010
20100069924METHODS FOR ACHIEVING SEROSA-TO-SEROSA CLOSURE OF A BODILY OPENING USING ONE OR MORE TACKING DEVICES - The present embodiments provide methods for facilitating closure of a bodily opening. In one exemplary method, a compressive force is imposed upon first and second tissue segments that at least partially surround an opening in tissue. The first and second tissue segments are positioned in a manner where a first serosal tissue region of the first tissue segment is compressed against a second serosal tissue region of the second tissue segment to facilitate sealing of the opening. At least one tacking device having proximal and distal deployable members may be deployed using a suitable insertion tool to impose a compressive force to hold the first serosal tissue region in a sealing relationship against the second serosal tissue region.03-18-2010
20100069955METHODS FOR FACILITATING CLOSURE OF A BODILY OPENING USING ONE OR MORE TACKING DEVICES - The present embodiments provide methods for facilitating closure of a bodily opening. In one exemplary method, at least a portion of a first tacking device is disposed through at least a portion of tissue at a first location in a vicinity of an opening in the tissue. Then, at least a portion of a second tacking device is disposed through at least a portion of tissue at a second location in the vicinity of an opening in the tissue. A closure member having at least one loop portion is advanced towards the first and second tacking devices, and the loop portion is positioned around at least a portion of the first tacking device and at least a portion of the second tacking device. The closure member then is actuated to urge the first tacking device towards the second tacking device to provide a compressive force upon the opening.03-18-2010
20100087707ENDCAP FOR SAFELY DEPLOYING TISSUE ANCHORS - Medical systems, devices and methods are provided for manipulating tissue, such as for closing a perforation in an internal bodily lumen. One embodiment of a medical system generally includes an endoscope, an endcap attached to the distal end of the endoscope, a plurality of needles attached to the endcap, a stylet cap slidably disposed of the endcap, a plurality of stylets attached to the stylet cap, and a plurality of tissue devices. The plurality of needles define a plurality of needle lumens and the plurality of stylets project distally into the needle lumens. The plurality of tissue devices are positioned within the needle lumens, whereby translation of the stylet cap relative to the endcap causes the plurality of stylets to engage the plurality to tissue devices and eject them from the plurality of needles. The medical system may further include a protective tip slidably attached to the plurality of needles.04-08-2010
20100121140ENDOSCOPE ENDCAP FOR SUTURING TISSUE - Medical systems, devices and methods are disclosed for suturing a perforation in tissue, that may be employed endoscopically and/or laparoscopically, and that offer simple, reliable and controllable placement of suture around a perforation for complete closure thereof. One embodiment of the medical device generally includes an endcap for use with an endoscope to suture an opening in tissue using a tissue anchor. The endcap has a tubular shape defined by an annular sidewall, and the sidewall defines an interior space. A side port is further defined by the annular sidewall and is in communication with the interior space. The side port is sized to receive and locate the tissue within the interior space for suturing. A support rib is positioned within the interior space and distal to the side port. The support rib and sidewall define a piercing aperture therebetween that supports the tissue being sutured.05-13-2010
20100145385TISSUE ANCHORS FOR PURSE-STRING CLOSURE OF PERFORATIONS - Medical devices for attaching suture to tissue and that provides reliable and complete closure of perforations and increases the versatility of the device for various other procedures. Embodiments of the medicals devices include a tissue anchor having a crossbar with opposing ends and structure for slidably receiving a suture.06-10-2010
20100168787MEDICAL DEVICE WITH PIVOTABLE JAWS - A medical device with pivotable jaws and method of use thereof are disclosed. The device includes a pair of jaw members which are capable of being rotated independently of one another and spaced apart up to about 360°. Various gear arrangements are provided for enabling rotation of the jaws. The jaw members are disposed within a flexible slotted housing when advanced to a target tissue site, and thereafter rotated out of the housing a predetermined amount to contact target tissue.07-01-2010
20100168792Stylet Locking Mechanism For Medical Delivery Devices - A stylet locking mechanism for preventing axial movement of a stylet relative to a needle of a medical delivery device is disclosed. The locking mechanism comprises first and second ends that may be removably attached to the device, and a hinge for allowing the locking mechanism to be disengaged from a locking position without being completely disconnected from the delivery device.07-01-2010
20100191052BARREL SYSTEM FOR USE WITH AN ENDOSCOPE - The present embodiments provide apparatus and methods for facilitating cauterization of tissue. In one embodiment, the apparatus comprises a proximal barrel and a distal barrel, which are coupled together and moveable with respect to one another. At least a portion of the proximal barrel may be coupled to an endoscope to secure the apparatus to the endoscope. At least one electrocautery member is disposed within a lumen of the distal barrel and configured to cauterize at least a segment of tissue pulled into a lumen of the proximal barrel and/or the lumen of the distal barrel.07-29-2010
20100204549EXPANDABLE PORT FOR ACCESSING A BODILY OPENING - Medical systems, devices and methods are provided for accessing a bodily opening. One embodiment of a medical device generally includes a flexible sheath and an expandable member. The flexible sheath has a length suitable for forming the pathway along a longitudinal axis. The expandable member is connected to a distal portion of a sheath. The expandable member is operable between a collapsed configuration and an expanded configuration. The expandable member includes a plurality of longitudinally extending struts connected together by a wire frame. The plurality of struts move radially and circumferentially relative to one another between collapsed and expanded configurations.08-12-2010
20100280367SYSTEM AND METHOD FOR FIDUCIAL DEPLOYMENT - Embodiments include a fiducial deployment system and method for use thereof. A fiducial may include one or more protuberances configured to engage one or more slots in a needle of the system. The needle may be configured to deliver a plurality of fiducials to a target location in serial fashion, one at a time. In certain embodiments, echogenic placement of fiducials may present certain advantages.11-04-2010
20100292541SYSTEMS, DEVICES AND METHODS FOR ACCESSING A BODILY OPENING - Medical systems, devices and methods are provided for accessing a bodily opening that, among other things, are safe and reliable, and facilitate manipulation of a medical instrument. The medical access device generally includes an elongated flexible sheath and an expandable frame connected to the distal end of the flexible sheath. The sheath and expandable frame are operable between expanded and collapsed configurations to provide a pathway from a natural orifice to the bodily opening.11-18-2010
20100305591TACKING DEVICE AND METHODS OF DEPLOYMENT - The present embodiments provide apparatus and methods suitable for coupling a graft member to tissue, closing a bodily opening, and the like. In one embodiment, a tacking device comprises a wire having first and second ends, and further having delivery and deployed states. In the contracted state, the wire comprises an elongated configuration that is substantially parallel to a central longitudinal axis. In the expanded state, the wire comprises a head region and a body region, the head region comprising at least one full turn having a first diameter, and the body region comprising at least two full turns having a second diameter, wherein the first diameter is greater than the second diameter. One or more of the tacking devices may be delivered using a laparoscopic, endoscopic or percutaneous approach.12-02-2010
20110060353INTESTINAL BYPASS USING MAGNETS - Medical devices and methods are provided for forming an intestinal bypass anastomosis, such as for treatment of obesity. The medical devices and methods are minimally invasive and reduce complications. Two magnet assemblies are deployed in a spaced apart relationship, and are transluminally brought together to approximate the tissue and form an anastomosis therebetween.03-10-2011
20110082345APPARATUS FOR SINGLE PORT ACCESS - Medical devices, systems and methods are disclosed that serve to guide one or more medical devices through a port formed in bodily tissue to access a bodily cavity. One embodiment of the medical device includes a connection member, a rail, and a carrier. The connection member is structured for attachment to the port. The rail is attached to the connection member, and has a first portion extending distally through the port opening, and a second portion extending at an angle relative to the first portion. The carrier is structured to selectively connect to the first portion of the rail, and is slidable along the first and second portions of the rail.04-07-2011
20110082370ENDOSCOPIC FASCIA TUNNELING - Medical systems and methods are provided for accessing a bodily cavity, such as the peritoneal cavity or the thoracic cavity, and for supporting diagnoses or procedures within or adjacent to such cavities. According to one embodiment, a method is provided for accessing an internal bodily cavity of patient, the bodily cavity defined by a cavity membrane, the patient having multiple tissue layers adjacent the bodily cavity including at least a skin layer and a fascia layer. An opening is formed through the skin layer and the fascia layer. An elongate medical device is inserted through the opening and between the fascia layer and the cavity membrane to form a tunnel communicating with the opening. Various medical instruments may then be used within the tunnel, and related medical kits and systems are described.04-07-2011
20110105947SYSTEM AND METHOD FOR PERFORMING A FULL THICKNESS TISSUE BIOPSY - A medical system for performing a tissue biopsy at a remote location within a patient is disclosed. The medical system comprises an elongate outer cutting member, an elongate inner member movably disposed within the outer member, and a tissue traction member for anchoring bodily tissue and pulling a sample of the tissue within the outer cutting member.05-05-2011
20110106107APPARATUS AND METHODS FOR MAINTAINING A FORCE UPON TISSUE USING A LOOP MEMBER - The present embodiments provide apparatus and methods for treating tissue by applying a force to the tissue. In one embodiment, the apparatus comprises a deployable segment having proximal and distal regions, a main body extending therebetween, and a loop member formed at the distal region of the deployable segment. A cannula having a bore is dimensioned to circumferentially surround at least a portion of the main body at a location proximal to the loop member, and a spring member is disposed between the cannula and the loop member. The proximal end of the spring member is affixed to the cannula, and the distal end of the spring member is movable to apply a compressive force to adjust the size of the opening of the loop member and compress tissue disposed within the opening of the loop member. In an alternative embodiment, the cannula is omitted, and a diameter of the loop member is configured to be reduced and increased any number of times before final deployment of the deployable segment.05-05-2011
20110144662CLIP DEVICES AND SYSTEMS AND METHODS FOR DEPLOYMENT - The present embodiments provide clip devices, along with systems and methods for delivering and deploying the clip devices. An exemplary clip device comprises inner and outer segments, and further has a delivery configuration, a tissue receiving configuration and a deployed configuration. A distal region of the outer segment is movable with respect to a distal region of the inner segment, thereby creating a spacing between the inner and outer segments for surrounding tissue in the tissue receiving configuration. The inner and outer segments may be biased to return to the deployed configuration, and may comprise generally identical shapes in the deployed configuration wherein the outer segment is proportionally larger than the inner segment. In one embodiment, the inner and outer segments each comprise “V” shapes in the unbiased state. Various delivery systems and methods are provided for delivering and deploying the clip devices disclosed.06-16-2011
20110152611SYSTEM AND METHOD FOR FIDUCIAL DEPLOYMENT - Embodiments include a fiducial deployment system with a handle configured for actuation of same. A fiducial may include one or more protuberances configured to engage one or more slots in a needle of the system. The needle may be configured to deliver a plurality of fiducials to a target location in serial fashion, one at a time. In certain embodiments, echogenic placement of fiducials may present certain advantages. The handle may include structures configured for incrementally or otherwise controlledly deploying one or more fiducials by advancing a stylet through and/or retracting the body of a needle in which fiducials are disposed.06-23-2011
20110152618ENDOSCOPE CAP WITH RAMP - An endoscope cap is provided for directing medical devices toward a selected target anatomy in a patient. The endoscope cap includes a ramp that may be used to deflect medical devices that have been advanced from a proximal portion of an endoscope to a distal portion thereof. The ramp may be integral with the endoscope cap, or alternatively, may be pivotally attached thereto.06-23-2011
20110152887MEDICAL DEVICES WITH DETACHABLE PIVOTABLE JAWS - Medical systems, devices and methods are provided for engaging tissue, e.g. for clipping tissue, closing a perforation or performing hemostasis. Generally, the medical system including a housing, first and second jaws rotatable relative to the housing, a driver, and an elongate drive wire. The elongate drive wire may be disconnected from the driver, first and second jaws, and the housing, which are left in vivo engaged with the tissue.06-23-2011

Patent applications by Vihar C. Surti, Winston-Salem, NC US